Samuel m



(No Model.) A

PLUSH 86 W. P. PHELPS.

PRINTING TELEGRAPH.

N6. 264,661. l Patented S666. 26116612;I

rtree.

PATENT SAMUEL M. PLUSH AND WILLIAM P. PHELPS, OF PHILADELPHIA, PA.

PRINTING-IELEGRAPH.

SPECIFICATION forming part of Letters PatentNo. 264,961,7dated September 26, 182.

I Application lcdDecember 13, 1881. (No model.)

To all whom it may concern:

Be it known that we, SAMUEL M. PLUSH and WILLIAM P. PHELPs, both of the city and county ot Philadelphia, and State ot' Pennsylvania, have invented an Improvement in Printing-Telegraphs, of which the following is a specification.

Ourinvention, as distinguished from all other telegraphs, relates to the use of a type-wheel driven by a weight or spring and controlled by two electro-magnets charged alternately by -two separate circuits when combined with a differentially-wound press-magnet, the object of which is to obtain a higher rate of speed than has hitherto been possible with absolute cer tainty of action.

While we are aware that improvements have been made in printing-telegraph instruments in4 which two or more circuit or line wires were employed,we believe that in no case has the combination of parts set out in this application been used for the purposeof controllingV the movements of the type-wheel, but are employed to drive the same. I

Our invention is further distinguished from all other telegraphs inthe mechanism for setting the type wheel or wheels, commonly called the unison'istop, those in common use being operated bythe movement of the type-wheel, requiring two or more revolutions of the same for that purpose, while ours requires in no case more than one revolution of the type-wheel, and is under the control of the transmitting-operator, and is operated through the combined type-wheels circuits.

Our pressmagnet is also novel in its operation, being wound differently, the two type circuits passing through it in opposite directions. Hence when both type-circuits are passing through it the magnetic result is nothing; but it responds slowly to either circuit operated separately.

ln the drawings, Figure 1 is a general view of our improved apparatus for printing electrically, showing part inplan and partin perspective. Fig. 2 is a sectional elevation of part of same on line ac and Fig. 3 is a sectional elevation of part of same on line y y.

A is a shaft, upon which is secured the ratchet-wheel B and arm C, and is driven by isincircuitWit-h lever H by the wire Y, and the fingers l I' are respectively connected with the line-wires Y4 and Y5, which are connected at the receiving-station with electro-magnets J and J', respectively. The electro-magnets J and J' are arranged upon either side of the ar` mature K, which is pivoted at K', and which is adapted to vibrate between the attractingfaces of said electro-magnets, and carries upon its lower end escapement-arms K2, provided with teeth or pallets, which control the rotation ot' the toothed wheel L, secured upon the shattM, which carries the type-wheel N, and which is driven by means ot' a clock-work, 0, or a weight. 4

Pivoted above the electro-magnets is an armature, S, arranged to be attracted by both of said electromagncts J and J', and may be properly balanced by a spring, S', so as not to respond to either one of said electro-magnets separately, but to instantly respond when both of said electro-magnets are electrically charged. This armature S actuates a rod, R, provided near the bottom with a collar, r, and having the part below said collar working loosely through the end of one leg' ot' the bell-crank Q, having upon its other leg' a projection or catch, g, which, when it is pressed down bythe armature S through the agency of the rodR, catches the rotating arm P and arrests therevolving type-Wheel N lat its zero or starting point. Thisdeviceconstitutesthe unison-stop. As described above, the armature S responds only when both electro-inagiiets J J' are simultaneously electritied, and this is accomplished by connecting the battery X with the'contactfinger G'iby wire Y', and connecting the linewires Y4 andY, respectively, to spring-lingers,

I and I' by wires Y2 and YS. Now, by pressing Ioo - for the next message.

e ati-imei upon the push-button G the spring-contact G puts the battery-current to both lines. Any other device may be used for this purpose, it' desired.

The press armature-lever T carries on one end the rubber press-roller U and on the other the armature T, which is actuated by a sluggish electro-magnet, V, wound differentially, or, in other words, with two helices wound in' opposite directions. One ot' these helices connects with 'magnet J and its line-wire by wire Y7, and the other helix connects with magnet J and its line-Wire by wireY8. The other ends of said helices are grounded, as shown at YQ, or passed to magnets J J of another instrument and then grounded. The press-roller end of lever T carries an arm, t, which is adapted to raise the unison-stop bell-crank Q out of connection with arm K2 after it has been put in action by armature S, which simply presses it down, but does not draw it up. A spring, w, carries on its end a pressureroller, W, which holds the paper to be printed down upon the press-roller U.

The olie'rationisastollows: Theclock-works D and O being wound up, the arms C swings iaround, rotating the ratchet-wheel B, throwing the battery-current alternately into the two line-wires Y4 and Y5, alternately charging magnets J and J', and causing the escapement to vibrate, allowing the type-wheel N to rotate with a step-by-step motion, but with rapidity, as it is driven by the clock-work O, and is simply controlled by the escapement K2. Now, if one of the push-buttons, F, is pushed down, it will arrest the movement of the 4arm C, andalso the type-wheel N. Vith each charging ot' magnetsJ and J the pressmagnet V is also charged, but it, being made to act sluggishly, does not have time to draw down its armature until the whole mechanism is brought to rest bypressing down one ofthe push buttons, F, and when this occurs the type-wheel is in position to print the letter or symbol corresponding to that upon the pushbutton F. Atter sending the message the unison-stop should be put in action to insure the instrument being in proper working order This is done by press- `ing down the push-button G, causing the battery-current to pass down both line-wires and charge both magnets J and J', causing the armature S to respond and throw the bellcrank Q into position to catch the arm l. Vhen this is done the magnet V is inert, as the line-currents are passing through Vit in opposite directions, one current `counteracting the effect produced by the other, and thereby preventing any possibility ot' the arm't pressing up the bell-crank Q out reach of the arm P. Now, it' thepush-button G is released and the arm C allowed to rotate, the escapement will operate to allow the ratchet-wheel B and typewheel N to rotate until the arm I? is caught b y the bell-crank Q. This brings the type-wheel to a zero-point, or in practice to A.

To use the instrument it is rst necessary to release the arm P from bell-crank Q by press'- ing down the push-button F, which will cause the magnet V to raise the arm tand throw up thebel1crank Q.

In this application we do not claim broadly the combination ot a type-wheel driven by weights, springs, or their equivalent, located at the printing-station, with two electro-magnets to control the rotation of said type-wheel, which are charged alternately by two separate circuits, as this will form subject-matter of a future application.

Having now described our invention, what we claim as new, and desire to secure by Letters Patent, is- Y 1. In a printiiig-telegraph, an armature arranged to vibrate, in combination with two electro-magnets, two electro-circuits respectively in circuit with said electro-magnets, means to pass anelectric current through both of said electro-magnets simultaneously from the sending-station, a type-wheel provided with a stop, a unison-stop arranged to'be thrown into position to arrest the rotation of typewheel by the Yibration of the armature, means to rotate said type-wheel, and means independent of the armature to throw said unison-stop out of position upon printing or attempting to print.

2. A printing-firmature,lin combination with aprinting-magnet wound with two wires in opposite directions, and means to pass an electric current through either one ot' said wires alone or through both of said wires simultaneously, so that when a current of electricity passes through either of said wires alone the magnet is operative, but when currents pass through both of said wires simultaneously it is inoperative.

3. In a printing-telegraph, a type-wheel, means to rotate it, and a reciprocating armature and escapement to control its rotation, in

`combination with a unison-stop provided with an actuating armature and connecting mechanism, two electro-magnets, two line-wires respectively in circuit with said electro-magnets, and means to close both of said line-circuits at the saine time to attract. the armature which actuates said unison-stop to throw it, into position to arrest the type-wheel at the proper place.

4. In a printing-telegraph, a unison-stop and an armature, and con nectin g mechanism adapted to throw said unison-stop into position to arrest the type-wheel, but not out of said position,in combination witha type-wheel, means to rotate said type-wheel, two electro-magnets to attract said armature, and means to charge both of said electro-magnets simultaneously.

5. The combination of two line-wires, two electro-magnets respectively in circuit with said linewires, means to pass a current through both of said electro-magnets at the same time, an escapement actuated by said electro-magnets, a type-wheel driven by power developed at the printing-station and controlled by the escapement, a press-magnet wound differen- IOO IOS

IIO

IZO

tall y with wires-respectvelyin circuit with the electro-magnets whiehactuate the escapement, and a. unison-stop provided with au actuatingarmature arranged to be attracted by said electro-magnets when currents are simultaneously sent through both of them.

6. In a printing-telegra1`)h,`" the combination of a type-wheel driven by power developed at the printing-station with two line-wires, means actuated by the electrical currents conducted by said wires to control the rotation ofthe typewheel,apressrnagnet wounddii'ferentiallywith part ot' said line-wires, and means to pass an electric current through both of said line-wires simultaneously.

7. In a printing'telegraph, the combination ot' a type-wheel driven by power developed at the printing-station with two linge-wires, two

SAMUEL M. PLUSH. WILLIAM P. PHELPS.

Witnesses R. M. HUNTER, R. S. CHILD, Jr. 

